+#define CHASSIS_ACTION_POWER_DOWN 0x00
+#define CHASSIS_ACTION_POWER_UP 0x01
+#define CHASSIS_ACTION_POWER_CYCLE 0x02
+#define CHASSIS_ACTION_HARD_RESET 0x03
+#define CHASSIS_ACTION_SOFT_SHUTDOWN 0x05
+
+void chassis_init();
+void chassis_control(unsigned char action);